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Groups > linux.kernel > #1736469
| From | Johan Hovold <johan@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: usb/media/cx231xx: null-ptr-deref in cx231xx_usb_probe |
| Date | 2017-09-21 10:40 +0200 |
| Message-ID | <us5bA-6U3-19@gated-at.bofh.it> (permalink) |
| References | <urSo1-6QG-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Sep 20, 2017 at 08:54:08PM +0200, Andrey Konovalov wrote: > Hi! > > I've got the following report while fuzzing the kernel with syzkaller. > > On commit ebb2c2437d8008d46796902ff390653822af6cc4 (Sep 18). > > The null-ptr-deref happens on assoc_desc->bFirstInterface, where > assoc_desc = udev->actconfig->intf_assoc[0]. There seems to be no > check that the device actually contains an Interface Association > Descriptor. That is indeed a bug; I'll respond to this mail with a fix. Thanks, Johan
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usb/media/cx231xx: null-ptr-deref in cx231xx_usb_probe Andrey Konovalov <andreyknvl@google.com> - 2017-09-20 21:00 +0200
Re: usb/media/cx231xx: null-ptr-deref in cx231xx_usb_probe Johan Hovold <johan@kernel.org> - 2017-09-21 10:40 +0200
[PATCH] [media] cx231xx-cards: fix NULL-deref on missing association descriptor Johan Hovold <johan@kernel.org> - 2017-09-21 10:50 +0200
Re: [PATCH] [media] cx231xx-cards: fix NULL-deref on missing association descriptor Andrey Konovalov <andreyknvl@google.com> - 2017-09-21 16:10 +0200
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